I'm a land-locked vacation diver with local reservoirs but no local dive shops. As a result, it took me 3-4 years to reach 100 dives, and all of those dives were in Florida and Cozumel. Then I bought a compressor and a dozen cylinders. Now I get 100 dives every 4-6 months. And I live in the mountains, 400 miles from the ocean!